#levelSector {
    width: 400px;
    height: 200px;
    background-color: white;
    box-sizing: border-box;
    border-radius: 5px;
    margin-top: -150px;
    margin-left: -200px;
    border: 2px solid lightgray;
}

#levelSector > div {
    width: 100%;
    height: 25%;
}

#levelSector > div:first-child {
    text-align: center;
    background-color: beige;
}

#levelSector > div:first-child a:nth-child(2) {
    margin-right: 10px;
    float: right;
}


#levelSector > div:first-child > a {
    display: inline-block;
}

#levelSector div:nth-child(2) > div:first-child, #levelSector div:nth-child(3) > div:first-child {
    width: 30%;
    text-align: right;
    display: inline-block;
}

#levelSector div:nth-child(2) > div:last-child, #levelSector div:nth-child(3) > div:last-child {
    display: inline-block;
}

#levelSector input {
    width: 40%;
    height: 100%;
    vertical-align: middle;
    display: inline-block;
}

#levelSector button {
    border-radius: 3px;
    border: 1px solid #4a81c4;
    background-color: #3a8be0;
    color: white;
    padding: 9px 30px;
    font-size: 14px;
}

#levelSector > div:last-child > div {
    width: 50%;
    height: 100%;
    float: left;
}

#levelSector .positive {
    margin-right: 10px;
    float: right;
}

#levelSector .negative {
    margin-left: 10px;
    float: left;

}

#levelSector input[type=range] {
    -webkit-appearance: none;
    border-radius: 10px; /*这个属性设置使填充进度条时的图形为圆角*/
}

#levelSector input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
}

#levelSector input[type=range]::-webkit-slider-runnable-track {
    height: 15px;
    border-radius: 10px; /*将轨道设为圆角的*/
    box-shadow: 0 1px 1px #def3f8, inset 0 .125em .125em #0d1112; /*轨道内置阴影效果*/
}

#levelSector input[type=range]:focus {
    outline: none;
}

#levelSector input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 25px;
    width: 25px;
    margin-top: -5px; /*使滑块超出轨道部分的偏移量相等*/
    background: #ffffff;
    border-radius: 50%; /*外观设置为圆形*/
    border: solid 0.125em rgba(205, 224, 230, 0.5); /*设置边框*/
    box-shadow: 0 .125em .125em #3b4547; /*添加底部阴影*/
}



